679784487976 has 32 divisors (see below), whose sum is σ = 1391545550880. Its totient is φ = 308753553600.

The previous prime is 679784487887. The next prime is 679784487979.

679784487976 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 679784487976.

It is not an unprimeable number, because it can be changed into a prime (679784487979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2878191 + ... + 3105406.

It is an arithmetic number, because the mean of its divisors is an integer number (43485798465).

Almost surely, 2^679784487976 is an apocalyptic number.

It is an amenable number.

679784487976 is an abundant number, since it is smaller than the sum of its proper divisors (711761062904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

679784487976 is a wasteful number, since it uses less digits than its factorization.

679784487976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5984905 (or 5984901 counting only the distinct ones).

The product of its digits is 7169347584, while the sum is 82.

The spelling of 679784487976 in words is "six hundred seventy-nine billion, seven hundred eighty-four million, four hundred eighty-seven thousand, nine hundred seventy-six".